226 citations · 2.4k across the 77 of their papers we have counts for
3 papers · 1 filter
Pulsating ULXs: large pulsed fraction excludes strong beaming
Alexander A. Mushtukov, Simon Portegies Zwart, Sergey S. Tsygankov +2
The recent discovery of pulsating ultra-luminous X-ray sources (ULXs) shows that the apparent luminosity of accreting neutron stars (NSs) can exceed the Eddington luminosity by a f…
Spectrum formation in X-ray pulsars at very low mass accretion rate: Monte-Carlo approach
Alexander A. Mushtukov, Valery F. Suleimanov, Sergey S. Tsygankov +1
It has been recently discovered that the transition of X-ray pulsars to the low luminosity state () is accompanied by a dramatic spectral chang…
The unusual behaviour of the young X-ray pulsar SXP 1062 during the 2019 outburst
Sergey S. Tsygankov, Victor Doroshenko, Alexander A. Mushtukov +6
We present results of the first dedicated observation of the young X-ray pulsar SXP 1062 in the broad X-ray energy band obtained during its 2019 outburst with the NuSTAR and XMM-Ne…